Michele Boldrin and David Levine have made the same argument in their book when comparing the copyright enforcement in the UK and the lack thereof in the United States, which lead to a boom of readership and then literacy in the US. Höffner makes the same point for Germany. He goes as far as claiming that this boost in readership and thus knowledge is the origin of the great expansion of German industry, much stronger than in the neighboring countries or Britain. Indeed, plenty of manuals and handbooks were published that made knowledge much more widely available, In Britain, this was limited to the elite, and the common people had to learn from hearsay.